<env:Envelope xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:tns="http://thomas-bayer.com/blz/" xmlns:env="http://www.w3.org/2003/05/soap-envelope">
  <env:Body>
    <tns:getBank>
      <tns:blz><%= test_values[:blz] || '70070010' %></tns:blz>
    </tns:getBank>
  </env:Body>
</env:Envelope>